Search for the η mesic He 3 in the p d → d p π 0 reaction with the WASA-at-COSY facility

Adlarson, P.; Engels, R.; Kamys, B.; Hirenzaki, S.; Serdyuk, V.; Shwartz, B.; Sterzenbach, G.; Erven, W.; Clement, H.; Kistryn, S.; Hüsken, N.; Augustyniak, W.; Szczurek, A.; Złomańczuk, J.; Lorentz, B.; Demmich, K.; Stockhorst, H.; Goldenbaum, F.; Prasuhn, D.; Schadmand, S.; Skorodko, T.; Żurek, M.; Johansson, T.; Calén, H.; Ritman, J.; Khreptak, A.; Sawant, S.; Stepaniak, J.; Pszczel, D.; Maier, R.; Pysz, K.; Piskunov, N. M.; Ströher, H.; Hejny, V.; Berłowski, M.; Kulessa, P.; Magiera, A.; Wüstner, P.; Marciniewski, P.; Sefzick, T.; Föhl, K.; Kelkar, N. G.; Grigoryev, K.; Ciepał, I.; Goswami, A.; Czerwiński, E.; Eyrich, W.; Fedorets, P.; Sopov, V.; Zabierowski, J.; Stassen, R.; Morsch, H.-P.; Kirillov, D. A.; Krzemień, W.; Zieliński, M. J.; Lersch, D.; Rundel, O.; Heijkenskjöld, L.; Wolke, M.; Mariański, B.; Bass, S. D.; Yamamoto, A.; Wrońska, A.; Parol, W.; Khoukaz, A.; Fransson, K.; Kupść, A.; Skurzok, M.; Ohm, H.; Roy, A.; Kłos, B.; Erven, A.; Kleines, H.; Moskal, P.; Kemmerling, G.; Smyrski, J.; Lalwani, K.; Stephan, E.; Bergmann, F. S.; Perez del Rio, E.; Bashkanov, M.; Büscher, M.; Bondar, A.

doi:10.1103/PhysRevC.102.044322

%0 Journal Article
%A Adlarson, P.
%A Augustyniak, W.
%A Bashkanov, M.
%A Bass, S. D.
%A Bergmann, F. S.
%A Berłowski, M.
%A Bondar, A.
%A Büscher, M.
%A Calén, H.
%A Ciepał, I.
%A Clement, H.
%A Czerwiński, E.
%A Demmich, K.
%A Engels, R.
%A Erven, A.
%A Erven, W.
%A Eyrich, W.
%A Fedorets, P.
%A Föhl, K.
%A Fransson, K.
%A Goldenbaum, F.
%A Goswami, A.
%A Grigoryev, K.
%A Heijkenskjöld, L.
%A Hejny, V.
%A Hüsken, N.
%A Hirenzaki, S.
%A Johansson, T.
%A Kamys, B.
%A Kelkar, N. G.
%A Kemmerling, G.
%A Khoukaz, A.
%A Khreptak, A.
%A Kirillov, D. A.
%A Kistryn, S.
%A Kleines, H.
%A Kłos, B.
%A Krzemień, W.
%A Kulessa, P.
%A Kupść, A.
%A Lalwani, K.
%A Lersch, D.
%A Lorentz, B.
%A Magiera, A.
%A Maier, R.
%A Marciniewski, P.
%A Mariański, B.
%A Morsch, H.-P.
%A Moskal, P.
%A Ohm, H.
%A Parol, W.
%A Perez del Rio, E.
%A Piskunov, N. M.
%A Prasuhn, D.
%A Pszczel, D.
%A Pysz, K.
%A Ritman, J.
%A Roy, A.
%A Rundel, O.
%A Sawant, S.
%A Schadmand, S.
%A Sefzick, T.
%A Serdyuk, V.
%A Shwartz, B.
%A Skorodko, T.
%A Skurzok, M.
%A Smyrski, J.
%A Sopov, V.
%A Stassen, R.
%A Stepaniak, J.
%A Stephan, E.
%A Sterzenbach, G.
%A Stockhorst, H.
%A Ströher, H.
%A Szczurek, A.
%A Wolke, M.
%A Wrońska, A.
%A Wüstner, P.
%A Yamamoto, A.
%A Zabierowski, J.
%A Zieliński, M. J.
%A Złomańczuk, J.
%A Żurek, M.
%T Search for the η mesic He 3 in the p d → d p π 0 reaction with the WASA-at-COSY facility
%J Physical review / C
%V 102
%N 4
%@ 2469-9985
%C Woodbury, NY
%I Inst.
%M FZJ-2021-00929
%P 044322
%D 2020
%X The excitation function for the pd→dpπ0 reaction has been measured by WASA-at-COSY experiment with the aim of searching for 3He−η mesic nuclei. The measurement in the vicinity of η meson production was performed using a ramped proton beam. The data analysis and interpretation was carried out with the assumption that the η mesic helium decays via the formation of an intermediate N∗(1535) resonance. No direct signal of the η mesic nucleus is observed in the excitation function. We determine a new improved upper limit for the total cross section for the bound state production and decay in the pd→(3He-η)bound→dpπ0 process. It varies between 13 nb to 24 nb for the bound state with width in the range Γ∈(5,50) MeV.
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000579839000001
%R 10.1103/PhysRevC.102.044322
%U https://juser.fz-juelich.de/record/890402

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